Powertrain
Definition only
Lights the check engine lamp
P2E90: Battery Charger A Internal Power Supply Performance
Standardized SAE J2012 code · P2Exx codes
What does P2E90 mean?
The internal low-voltage power supply of battery charger A does not maintain the expected output. Internal regulator drift or overload.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Common causes
- High Internal regulator drifted
- Medium Internal load increased
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2E90 on the same make and model first.
P2E90 in the community
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